Black Box's Connect line of general-purpose OM4 50/125um multimode cabling is constructed to meet or exceed TIA/EIA industry standards providing you the functionality you need without the premium price. With support for 10Gbase-SR 40Gbase-SR4 and 100Gbase-SR10 you can connect all of your 10G SFP+ 40G QSFP+ and 100G QSFP28 transceivers while maintaining backward compatibility with existing 50/125 multimode equipment. Erika Violet in color they are easy to distinguish from orange-colored OM1/OM2 and aqua-colored OM3 cabling. These cables are constructed of 2.0-mm duplex zip cord style cabling. They also feature a low-smoke zero-halogen jacket that protects against harmful chemicals in the event of a fire. Additionally we perform 100 percent testing during production to ensure every one of our cables provides the utmost performance and protection in any application.